Project Examples

A8 Albaufstieg Tunnels

Detailed quantitative risk analysis as per German RABT Guideline for Equipping and Operating Road Tunnels and for Hazardous Goods (Stage 1b and 2a), 2014–2015

Client Federal State of Baden-Wuerttemberg, Germany

Drackenstein tunnel, three-lane, one-way road tunnel
Length: approx. 1,700 m

Himmelsschleife tunnel, three-lane, one-way road tunnel
Length: approx. 1,200 m

A22 Kaisermühlen Tunnel

Detailed quantitative risk analysis (including CFD simulations and scenario analysis) for the planned rehabilitation of the ventilation system in the Kaisermühlen tunnel, 2010–2014

Client ASFINAG (Austrian highway financing stock corporation), Austria

Urban unidirectional road tunnel, 4-lanes per direction, several access and exit ramps over the entire tunnel length (2.180 km), collector at the midpoint of the tunnel, section control with variable maximum speed

B8 Učka Tunnel

Detailed quantitative, scenario-based risk analysis (CFD model for smoke propagation, simulation of evacuation of people) including recommen-dations on the selection of transverse or longitudinal ventilation system in combination with additional risk mitigation measures (e. g. shortening of emergency exits distance), 2011–2012

Client Bina-Istra d.d., Lupoglav; risk analysis, Croatia

The 5.062 km long, two-way road tunnel will be upgraded to a one-way motorway tunnel – second tube in the design stage.

A10 Oswaldiberg Tunnel

Detailed user risk analysis of the Oswaldiberg tunnel during tunnel rehabilitation (temporary bidirectional operation) and upon completion of tunnel rehabilitation (unidirectional operation), 2013–2015

Client ASFINAG (Austrian highway financing stock corporation), Austria

Twin-tube motorway tunnel with a length of 4.307 km

A11/A2 Karawanken Tunnel

The quantitative risk analysis was carried out to assess and compare the safety improvement of additional emergency exits (existing ventilation system) and the implementation of a transverse ventilation system , 2009–2015

Client ASFINAG (Austrian highway financing stock corporation), Austria

Dual-lane road tunnel with a length of 7.864 km and bi-directional traffic. The current ventilation system is a combination of longitudinal ventilation in the middle section and transverse ventilation in the Northern and Southern section.